{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354073",
    "entityType": "User",
    "nonce": "0xf71988027e0f5979a0241a105ada9f2fc6ad66ad4abf361422db1e5ef9ed30c4",
    "signature": "0x3f61511f78eb9cbb1559512a6d31d678b45ea2ea88ab7112fe936839cf6d5dc0165a02c8fe0ce1c0673921df72f3406ac45eaec50ee38291dc6b092383d484041b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}